patency

Letter alike，interclass difference quiet；letter different，interclass difference patency.

相，间差显著；，间差显著。

Hydrotubation, patency of tubes were observed and compared with hysterosalpinograms (HSGs) the fertile situation after operations of sterile patients was tracked.

观察输卵管通液情况及其与子宫输卵管碘油造影(HSG)结果比较；追踪孕症患者术后受孕情况。